Electron emission device with multi-layered fate electrode

Details Electron emission device with multi-layered fate electrode Electron emission device with multi-layered fate electrode

2006-04-18

2006-04-18

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S495000, C313S446000, C313S310000, C315S169100, C315S169300

Reexamination Certificate

active

07030550

ABSTRACT:
Low-cost electron emission device and field emission display using a cold cathode electron source having a high electron beam utilization efficiency and capable of controlling the spread of the electron beam. Under the condition Ea≧Eg, the electric field strength near the gate electrode forming an electron emission control unit is varied between a central portion and a peripheral portion in the plane of a single pixel (or sub-pixel), thereby controlling the spread of the electron beam. A device using a field emission-type electron source array capable of achieving a high emission current density at low voltage can be realized at low cost.

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